阿尔古纳河沿岸化工矿山联合企业各矿开采的铀矿床多为形态复杂和矿石品位高的薄矿体，主要用下向胶结充填法开采。可降低矿石损失和贫化，还可极大地减少放射性对矿工的危害。充填料的制备和输送工艺在联合企业各矿的充填作业中，用水泥一飞灰混合物作胶结剂是降低水泥消耗量 Most of the uranium deposits mined by chemical mines and coal mines along the Argun River are mined in thin ore bodies with complicated morphologies and high grade of ore, and are mainly mined by cementing and filling methods. Can reduce ore loss and depletion, but also can greatly reduce the hazards of radioactive miners. Preparation and transportation of filler material In the filling operations of the mines of the joint ventures, cement-fly ash mixture is used as a cement to reduce cement consumption